81714985 is an odd 8-digits composite number following 81714984
and preceding 81714986 . In scientific notation, it is written as 8.1714985 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 59328640 positive integers (up to 81714985) that are relatively prime to 81714985.
81714985 has 8 divisors, whose sum is 83341440
The reverse of 81714985 is 58941718
Previous prime number is 953
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million seven hundred fourteen thousand nine hundred eighty-five
Scientific notation
8.1714985 × 10^7
Engineering notation
8.1714985 × 10^6
Prime Factorization
55 × 953 × 1559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81714985
Product of the distinct prime numbers
The prime factorization of 81714985 is 55 × 953 × 1559.
Since it has a total of 3 prime factors.
10 , 3 , 63 , 72 , 749 , 482 , 3332 , 1805 , 74168 , 55596 , 228541 , 79034 , 4147495 , 2985562 , 68756897 , 6543592 , 751667197 , 276834979 , 6966857196 , 6517879244
n×2
163429970
n×3
245144955
n×4
326859940
n×5
408574925
n÷2
40857492.5
n÷3
27238328.333333
n÷3
20428746.25
n÷5
16342997
n2
6677338773550225
n3
5.4563863772058E+23
n4
4.4586853096757E+31
n5
3.6434140319987E+39
2 √n
9039.6341187019
3 √n
433.94421370208
4 √n
95.076990479831
5 √n
38.234933665877
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81714984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81714985 can be divided by 8 positive divisors.
The sum of these divisors (counting 81714985) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111101101111100101001
3
Ternary
12200202112212221
4
Quaternary
10313231330221
5
Quinary
131404334420
6
Senary
12035234041
8
Octal
467557451
10
Decimal
81714985
12
Duodecimal
23448921
16
Hexadecimal
4dedf29
20
Vigesimal
15ae795
36
Base36
1cnfop
md5
034bfb876d522f6a20163e222739f9ac
sha1
7178e931c398afb9a9430a138cd4339c749da5b9
sha256
fef845d824ba7a816c100bc067061af113b37ce902228820bef84a446bd025a0
sha512
dc6503157cbcc7bafdd45fbfaf56e4c36ffb04d1499fcd8e96eff6a5c88d7781f900037523725642b17ba1a970947cd59752b8d25499a2fd01b965b549ab5600
ripemd-160
fe15d39a02f84ab1efa76257a820b36a162593a3
Diameter
163429970
Circumference
513430393.1284
Area
2.0977478436516E+16
Volume
2.2855657810369E+24
Surface area
8.3909913746063E+16
Circumference
513430393.1284
Perimeter
326859940
Area
6677338773550225
Diagonal
115562440.03611
Surface area
40064032641301350
Volume
5.4563863772058E+23
Space diagonal
141534505.75973
Perimeter
245144955
Area
2.8913725037847E+15
Altitude
70767252.879864
Surface area
2.8913725037847E+15
Volume
6.4304130134935E+22
Height
38520813.345371